The frequency or amount at which a thing or things occur within a given area or the set of probabilities that a variable will have a particular value.

learn more… | top users | synonyms

3
votes
2answers
49 views

How to create a realistic distribution of cities?

I'm not sure if this is the right community to ask this, so let me know if it's not. I'm wondering if there's been some empirical research as to how villages and cities are distributed around other ...
2
votes
0answers
32 views

Redistribution of polygons: supplementing and filling the specific area with polygons with specific size

I'm studying the impact of green wedges (red outline on the figure) on weather parameters in Copenhagen area. What I want to do is check how spatial redistribution of future afforested areas enacted ...
1
vote
2answers
124 views

Creating species distribution map?

I have to create some species distribution maps, but I have very little experience with ArcGIS unfortunately. I have two different kinds of excel sheets: 1) A version with many thousand X and Y ...
1
vote
1answer
24 views

is there an operation for measuring constancy (ecology)

I'm looking for an effective way to measure changes in spatial location in a time series data set (whether an observation repeats in the same location between successive time-steps, or if it shifts ...
0
votes
0answers
33 views

Distribution of POI query result

There are a lot of POIS in the database with fileds id name address lon lat. When we tried to query some points for a given bounding box, it is simple to build the accordingly sql and get the ...
1
vote
2answers
35 views

How to see whether a set of postcodes have a typical distribution to the whole postcode population of UK?

For my dissertation I have a dataset of postcodes of 9984 that I am converting to coordinates atm. I looking to find whether this dataset has a 'typical or 'atypical' spatial distribution compared ...
0
votes
0answers
21 views

GCM selection for future climates

This is not a coding question but rather an inquiry of which Global Climate Model(GCM) to use when projecting species distribution models for future climates. With the release of the IPCC AR5, and the ...
1
vote
2answers
190 views

How to get an indication of how points are spatially distributed?

Let's say I have a set of points and I want to get an indication of their spatial distribution. That is, if all points are at one location a possible return value would be 0, whereas if all points are ...
4
votes
1answer
101 views

Simple way to compare ranges and distributions of species, looking for correlation and differences between ranges

As a biology student just beginning with GIS, wondered if someone could give me an idea of what tools to go about using to compare the range of 3 species that have trophic effects on one another. I ...
1
vote
1answer
50 views

Animal distribution data help [closed]

I have downloaded CSV occurrence datasets for voles and kestrels in the UK, then displayed the XY data of each as points using the latitude and longitude. Not sure if this is the right place to post ...
2
votes
1answer
124 views

Re-Distributing Python Toolbox

After reading this Esri article on how to distribute Python Toolboxes, I'm wondering how redistribution works? I have a few toolboxes that are in constant development, but would be useful to my ...
3
votes
0answers
180 views

Empirical Bayesian kriging - does data need to be normal?

With empirical Bayesian kriging (ebk), does the data need to be normally distributed? If I apply a normal score transformation, my data is still not normal. Is ebk kriging thus an invalid ...
2
votes
0answers
51 views

Distribute population to health facilities (GP Practices)

I have been using GIS (ArcGis) for some years but I do not consider myself an expert. I am performing some analysis around GP Practices in London (UK), I would like to be able to estimate the ...
2
votes
2answers
68 views

Where to deposit global coverage dataset?

Some years ago I published a paper on Quarter Degree Grid Cells in the African Journal of Ecology. Quarter Degree Grid Cells (QDGC or QDS – Quarter degree Squares) is a way of dividing the longitude ...